{"id":36626,"date":"2017-12-27T20:05:29","date_gmt":"2017-12-27T20:05:29","guid":{"rendered":"https:\/\/www.mometrix.com\/academy\/?page_id=36626"},"modified":"2026-06-23T17:07:45","modified_gmt":"2026-06-23T22:07:45","slug":"introduction-to-numbers","status":"publish","type":"page","link":"https:\/\/www.mometrix.com\/academy\/introduction-to-numbers\/","title":{"rendered":"Introduction to Numbers"},"content":{"rendered":"\n\t\t\t<div id=\"mmDeferVideoEncompass_s4RL8JyiP4k\" style=\"position: relative;\">\n\t\t\t<picture>\n\t\t\t\t<source srcset=\"https:\/\/www.mometrix.com\/academy\/wp-content\/uploads\/2023\/01\/circle-play-duotone.webp\" type=\"image\/webp\">\n\t\t\t\t<source srcset=\"https:\/\/www.mometrix.com\/academy\/wp-content\/uploads\/2023\/01\/circle-play-duotone.png\" type=\"image\/jpeg\"> \n\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" loading=\"eager\" id=\"videoThumbnailImage_s4RL8JyiP4k\" data-source-videoID=\"s4RL8JyiP4k\" src=\"https:\/\/www.mometrix.com\/academy\/wp-content\/uploads\/2023\/01\/circle-play-duotone.png\" alt=\"Introduction to Numbers Video\" height=\"720\" width=\"1280\" class=\"size-full\" data-matomo-title = \"Introduction to Numbers\">\n\t\t\t<\/picture>\n\t\t\t<\/div>\n\t\t\t<style>img#videoThumbnailImage_s4RL8JyiP4k:hover {cursor:pointer;} img#videoThumbnailImage_s4RL8JyiP4k {background-size:contain;background-image:url(\"https:\/\/www.mometrix.com\/academy\/wp-content\/uploads\/2026\/04\/Types-of-numbers-thumb.jpg\");}<\/style>\n\t\t\t<script defer>\n\t\t\t  jQuery(\"img#videoThumbnailImage_s4RL8JyiP4k\").click(function() {\n\t\t\t\tlet videoId = jQuery(this).attr(\"data-source-videoID\");\n\t\t\t\tlet helpTag = '<div id=\"mmDeferVideoYTMessage_s4RL8JyiP4k\" style=\"display: none;position: absolute;top: -24px;width: 100%;text-align: center;\"><span style=\"font-style: italic;font-size: small;border-top: 1px solid #fc0;\">Having trouble? <a href=\"https:\/\/www.youtube.com\/watch?v='+videoId+'\" target=\"_blank\">Click here to watch on YouTube.<\/a><\/span><\/div>';\n\t\t\t\tlet tag = document.createElement(\"iframe\");\n\t\t\t\ttag.id = \"yt\" + videoId;\n\t\t\t\ttag.src = \"https:\/\/www.youtube-nocookie.com\/embed\/\" + videoId + \"?autoplay=1&controls=1&wmode=opaque&rel=0&egm=0&iv_load_policy=3&hd=0&enablejsapi=1\";\n\t\t\t\ttag.frameborder = 0;\n\t\t\t\ttag.allow = \"autoplay; fullscreen\";\n\t\t\t\ttag.width = this.width;\n\t\t\t\ttag.height = this.height;\n\t\t\t\ttag.setAttribute(\"data-matomo-title\",\"Introduction to Numbers\");\n\t\t\t\tjQuery(\"div#mmDeferVideoEncompass_s4RL8JyiP4k\").html(tag);\n\t\t\t\tjQuery(\"div#mmDeferVideoEncompass_s4RL8JyiP4k\").prepend(helpTag);\n\t\t\t\tsetTimeout(function(){jQuery(\"div#mmDeferVideoYTMessage_s4RL8JyiP4k\").css(\"display\", \"block\");}, 2000);\n\t\t\t  });\n\t\t\t  \n\t\t\t<\/script>\n\t\t\n<div class=\"accordion\"><input id=\"transcript\" type=\"checkbox\" class=\"spoiler_button\" \/><label for=\"transcript\">Transcript<\/label>\n<div class=\"spoiler\" id=\"transcript-spoiler\">\n<p>Hi, and welcome this video lesson on numbers! All kinds of numbers are important when learning math including integers, decimals, fractions, percentages, etc.<\/p>\n<p>Let&#8217;s go ahead and review what some of these terms mean so that we can do better next time. An integer is a positive whole number, negative whole number, or zero. For example, 8 is an integer, so is \u22129. The fraction 1\/2 is not, and neither is \u22120.4.<\/p>\n<p>A percentage is part per hundred. For example, 20% is 20 parts per hundred, or 0.20. The best way to think of percentages is to think of a pie. 100% of a pie is one whole pie. 50% of a pie is half a pie. Make sense?<\/p>\n<p>A fraction is an expression where one number is being divided by another number. For example, 10 divided by 20 is a fraction (\\(\\frac{10}{20}\\)), but don&#8217;t forget, sometimes fractions can be simplified.<\/p>\n<p>For example, you can divide both the top and bottom numbers in \\(\\frac{10}{20}\\) by 10 and have 1 over 2, or \\(\\frac{1}{2}\\), which is much easier to think about.<\/p>\n<p>All rational numbers can be written as a positive or negative whole number, or zero, being divided by another positive or negative whole number. This is pretty all-encompassing; it includes fractions, negatives, positives, zero, everything.<\/p>\n<p>For example, \u22125 is a rational number, but so is \u22120.5. Make sense?<\/p>\n<p>A decimal contains a whole number or zero and a portion of the whole number which is to the right of the decimal point. For example, 20.53 is a number in decimal form, 2 and 0 to the left of the decimal and 5 and 3 to the right.<\/p>\n<p>All rational numbers are either terminating numbers, where the numbers to the right of the decimal end, or repeating numbers, where the numbers the right of the decimal continue for infinity.<\/p>\n<p>An example of a repeating decimal would be the number point 3333333&#8230; for infinity. Let&#8217;s make sure we can identify, in order, every one of these types of numbers.<\/p>\n<p>Place these in order from least to greatest:<\/p>\n<div class=\"examplesentence\">12<sup>2<\/sup>, 12%, 1.2, 12<\/div>\n<p>\n&nbsp;<br \/>\nLooks like the first number is going to be 12% because 12 out of 100 is 0.12.<\/p>\n<p>Then, we&#8217;re going to have 1.2, then we&#8217;ll have 12, and finally we have 12<sup>2<\/sup>, which is actually 144.<\/p>\n<p>I hope that helps. Thanks so much for watching, and until next time, happy studying!<\/p>\n<\/div>\n<\/div>\n\n<div class=\"home-buttons\">\n<p><a href=\"https:\/\/www.mometrix.com\/academy\/basic-arithmetic\/\">Return to Basic Arithmetic Videos<\/a><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Return to Basic Arithmetic Videos<\/p>\n","protected":false},"author":1,"featured_media":292673,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":{"0":"post-36626","1":"page","2":"type-page","3":"status-publish","4":"has-post-thumbnail","6":"page_category-additional-topics","7":"page_category-math-advertising-group","8":"page_type-video","9":"subject_matter-math"},"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 4.9.9 - aioseo.com -->\n\t<meta name=\"description\" content=\"Numbers are everywhere and fall under varied classifications to be used for types of math. 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